US Patent: 305,767
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| Carriage-Wrench
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Patentee:
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| David True (exact or similar names) - Salisbury, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 08, 1884 |
| Granted: |
Sep. 30, 1884 |
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Patent Pictures:
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David True patent September 30, 1884 |
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Stan Schulz
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Description: |
| Removable sockets for different sizes of axle nuts are held on to the lever arms by a combination of rubber ring and metallic springs. This is True's fifth patent, refining the design that had evolved through patent nos. 271,549, 279,993, 291,961, and 292,186. |
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